According to the Evan's pKa table, phenol has a pKa of 9.95. p-Nitro and m-nitrophenol have pKas of 7.14 and 8.35 respectively. Using resonance structures, explain the observed trends in the acidity of these molecules.

Q: The rate constant for this first-order reaction is 0.0246 s−1 at 300 °C.   A⟶products Calculate th...

A: The given reaction is of first order. k = rate constant = 0.0246 s-1 FInal mass after t = 1.28 mins ...

Q: What methods could be used to determine the structure of polyiodides? Discuss how could they identif...

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Q: Write the mass balance equation for a solution of saturated lithium fluoide which has a pH of 5.50. ...

A: In Mass balance equation, matter is conserved during a chemical reaction.

Q: You want to make a solution of methyl ethyl ketone (2.76 D). Which of the following solvents do you ...

A: The solution of the question is given below:

Q: milliliters

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Q: ) Which of the flowing reactions will have the faster rate and give a better yield? Use drawings of ...

A: Soln

Q: calculate the extraction efficiency of a single extraction when 50.00 mL of a 0.025 M aqueous soluti...

A: Dissociation constant of Glycolic acid (Ka) = 1.47 * 10-4. pH of glycolic acid = 3.0 [H+] = 1.0 * 10...

Q: What is the molality of a solution of 12 g of sodium chloride dissolved in 101 g of water that exhib...

A: Mass of NaCl = 12 g Mass of water = 101 g Freezing point depression, ∆Tf = 3.4oC Kf water = 1.86 oC/...

Q: Give the major cyclic product for the following reaction

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Q: Br e LOCH3

A: The solution is given below - 

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In...

A: Answer: Since, calorimeter used in both the cases is same, therefore from the salicylic acid data, w...

Q: Which one of the alkyl chlorides would you expect to undergo an SN1 process most readily and which o...

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Q: a) butyrate reacts with methyl butyrate reacts wuth ethyl butyrate reacts with 1-propyl butyrate ...

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Q: sample of a gas is in a reaction vessel under a certain set of conditions such that it possesses 4.3...

A: ANSWER :   (a)We know a formula that entropy relates with the microstates :  S = K*lnW  Here :  S = ...

Q: СООН СООН СООН СООН ZON (а) O2N II III IV ČI I Br CH3 (b) OH HO, HO, I II III IV NO2 Br

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Q: 1. Consider an aqueous solution of ammonium nitride. a) How many grams of ammonium nitride are prese...

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Q: Determine the concentrations of the following ionic species present in a 0.271M solution of Na2SO3. ...

A: ANSWER : (i) Concentration of OH- ion  =  0.000207 M (ii) Concentration of HSO3- ion  =  0.000207 M ...

Q: ite the structures of A-C and mechanisms of the following reactions. (i) Me2CuLi (i) PhMgBr N' HCI H...

A: In the above reaction, first step is formation of enamine Second step is reaction of Gilman Third st...

Q: To the correct number of significant figures calculate log(4.399x104).

A: Significant figures are the digits of a number that have meaning in terms of accuracy or precision.

Q: What is the ionic strength of a solution that contains 0.20 M sodium chloride and 0.50M sodium sulfi...

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Q: SOCI, CH3CH2CH,CH2OH 3. 4. H3C OH HBr Ether

A: These two reactions are mechanism based answer . First one is a chlorination reaction in presence of...

Q: What is the Amax of this given structure?

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Q: 1. Name the three classifications of compound microscope. 2. Differentiate magnification and resolut...

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Q: A solution is prepared by dissolving 11.3 g of Ca(NO3)2 in 115 g of water. The molal freezing point ...

A: The correct answer is given below

Q: A concentrated solution of NaOH is 50% NaOH by mass and has a density of 1.54 g.ml. if 25 mL of this...

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Q: ACTIVITY/EXERCISES Direction: Graph the heating curve of ethanol using the information given. Check ...

A: A question based on intermolecular force that is to be accomplished.

Q: +O2 (8) 2 SO, (8) A,2.000 Lflask was initially filled with,0.0400 mol SO and 0.0200 mol O, and was a...

A: Volume of flask = 2L Initial moles of SO2 = 0.04 moles Initial moles of O2 = 0.02 moles Equilibrium ...

Q: In a good calorimeter with a lid, 50.0 gram sample of liquid water at 25.0 °C is mixed with 32.87 gr...

A: a. It gained by cold water b. Heat lost by hot water c. According to law of thermodynamics the total...

Q: Born-Haber cycle; I don’t know how to formulate it for this reaction.

A: Bond enthalpy for the breaking of O2 = 498kJ/mol But we need bond enthalpy for 1/2O2 = 498/2kJ/mol =...

Q: Determine if the statements are true. The stable form of a solid drug has a lower solubility and di...

A: Determine if the statements are true.

Q: 1. Methyl Alcohol and ethyl alcohol form ideal solutions. At 500C, the vapor pressure of pure methyl...

A: 1) Raoult's law: According to the Raoult's law at any particular temperature the partial pressure of...

Q: NH ? S20,2- OH НNaOAc OH NO2 NH2 H3C NH Na,S204 acetic anhydride но NaOH, H20 HO NaOAc, HCI, H2O Но ...

A: On comparing with given reaction below, 

Q: (a) Calculate the equilbrium partial pressures of Oy, NOCI, NO, and Cly. Peg(O2) -L Pey(NOCI) - Pe(N...

A:   Volume of vessel = 1 L Temperature = 2385 K Moles of Cl2 found at equilibrium = 0.008268 Given rea...

Q: of 10 9. Propose a multi-step synthetic pathway for the desired target compound starting with the re...

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Q: At 600°C, carbon monoxide gas and hydrogen gas reacts with each other to form methane gas and water ...

A: Given T = 600 

Q: Given the reaction: SbCl5(g) SbCl3 (g) + Cl2 (g) the delta H=8000 and delta G = 3800 at 25°C. Calc...

A:  The measure of the thermodynamic activity of the gas's molecules is known as the partial pressure o...

Q: Which graph corresponds to this reaction? NH3(g) + HCI(g) 5 NH,CI(s) D AG AG AG AG +

A: In this question we are given a chemical reaction and we have to choose the correct graph between Gi...

Q: e the molar mass of each compound. Show yo

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Q: Convert each of the following OH concentrations to pH. 1.4 M i eTextbook and Media 2.4 µM i 0.031 M ...

A: It can be calculated by using formula :-  pH = 14 + log[OH-] 

Q: 2F22* + H202 + 2H* → 2FE3* + 2H20

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Q: Strontium has a ground state configuration of 5s electrons, from the excitation of  electron in the ...

A: The possible term symbols are represented by LJ2S+1, where L is the total orbital angular momentum r...

Q: What are the implications of labeling theory? Give a description of labeling theory and use specific...

A: Answer - According to the question - Labeling could have either negative or positive consequences; b...

Q: A gas mixture is composed of 2.0 moles N2 and 1 mole H2. Calculate the average molar mass of the gas...

A: Given: 2 moles of N2 1 mole of H2 2 moles of N2 has mass 2*28 = 56 gram 1 mole of H2 has mass 2 gram...

Q: 1a.) From experiment the rate law, rate = k[NO2]2, was determined for the following reaction. NO2(g)...

A: Here we have to predict reaction mechanism by knowing the chemical reaction and rate law equation. T...

Q: What is the percent ionization of a 0.0289 M aqueous solution of cyanic acid, HCNO (K, = 3.5E-4)? i ...

A: The ionisation of weak acid are very low. The percentage of ionisation can be calculated as follows

Q: 9) There are 3 different cyclopropane molecules with the formula GHẠCI2. а. Draw and build the 3 mol...

A: The molecular formula of the compound given is C3H4Cl2.  

Q: Read through each scenario. Under the scenario, write which lab safety rule is being broken and indi...

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Q: Provide the systematic and common names for the following compounds

A: IUPAC nomenclature is used for naming organic compounds. Full form of IUPAC is international union o...

Q: How does an intramolecular hydrogen bond differ from an intermolecular hydrogen bond

A: The answer is as follows:  

Q: 3.38 Draw the conjugate acid for each of the following bases: a. b. c. NANH2 d. H20 е. f. NH, g. h. ...

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